(4Z)-1-(4-Chlorophenyl)-4-{[(4-chlorophenyl)amino]methylidene}-3-ethoxy-4,5-dihydro-1H-pyrazol-5-one CAS 338751-06-7
| CAS No. | 338751-06-7 |
| Molecular Formula | C18H15Cl2N3O2 |
| Molecular Weight | 376.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4Z)-1-(4-Chlorophenyl)-4-{[(4-chlorophenyl)amino]methylidene}-3-ethoxy-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-06-7), a certified reference material (molecular formula C18H15Cl2N3O2, MW 376.24 g/mol) for analytical method development and quality control.
Structurally, (4Z)-1-(4-Chlorophenyl)-4-{[(4-chlorophenyl)amino]methylidene}-3-ethoxy-4,5-dihydro-1H-pyrazol-5-one (C18H15Cl2N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 376.24 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (4Z)-1-(4-Chlorophenyl)-4-{[(4-chlorophenyl)amino]methylidene}-3-ethoxy-4,5-dihydro-1H-pyrazol-5-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H15Cl2N3O2 |
| Molecular Weight | 376.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Z Standards
- 1-(4-Chlorophenyl)-3-phenyl-2-(trichloromethyl)imidazolidine (CAS 61545-15-1)
- (E)-1-(5-(4-(3-chlorophenyl)piperazin-1-yl)thiophen-2-yl)-3-(dimethylamino)prop-2-en-1-one (CAS 692287-76-6)
- 2-{[(4-chlorophenyl)methyl]sulfanyl}-4-(morpholin-4-yl)-5,6,7,8-tetrahydroquinazoline (CAS 339019-12-4)
- (4-Chlorophenyl)(4-hydroxy-4-((p-tolylthio)methyl)piperidin-1-yl)methanone (CAS 478248-07-6)
- Ethyl 5-(3-chlorophenyl)-4-iodo-1H-pyrazole-3-carboxylate (CAS 1370022-89-1)
- 2-((3-(2-Chlorophenyl)-1,2,4-thiadiazol-5-yl)thio)-N-(o-tolyl)acetamide (CAS 864919-05-1)
- 2-(2-Chlorophenyl)-N-((5-(thiophene-2-carbonyl)thiophen-2-yl)methyl)acetamide (CAS 1421466-57-0)
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Recommended Standards
- (3Z)-4-[(3-Bromophenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-one (CAS 339017-42-4)
- (5-Chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl (4-chlorophenyl)carbamate (CAS 318248-37-2)
- 1,3-Dimethyl-5-{[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl]methylidene}-1,3-diazinane-2,4,6-trione (CAS 1449135-43-6)
- (E)-2-methyl-3-oxo-5-phenyl-2,3-dihydro-1H-pyrazole-4-carbaldehyde O-(2,4-dichlorobenzyl) oxime (CAS 321533-58-8)
- (2E)-3-[(4-Chloro-3-nitrophenyl)amino]-1-{3-[(2,4-dichlorophenyl)methoxy]phenyl}prop-2-en-1-one (CAS 478040-27-6)
- 3-(2,3-dihydro-1,4-benzodioxin-6-yl)-1H-1,2,4-triazole-5-thiol (CAS 1094769-92-2)
- 1-Bromo-2-fluoro-4-(2,2,2-trifluoroethoxy)benzene (CAS 1036724-63-6)
- (S)-2-(4-Fluoro-3-methylphenyl)piperidine (CAS 1241683-61-3)
- 2-Bromo-4-fluoro-N-(3-fluorobenzyl)aniline (CAS 1038978-91-4)
- 6-Fluorospiro[isochromane-1,4'-piperidine] (CAS 866029-31-4)
- 4-Fluoro-2-hydroxyquinoline (CAS 1261539-01-8)
- N-Benzyl-4-methyl-N-phenylbenzamide (CAS 302949-32-2)
- 3-Amino-4,7-dihydroxy-2H-chromen-2-one hydrochloride (CAS 90322-50-2)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
Why CATO?
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